Sewage-ejector.



W. MOGLINTOGK.

SEWAGE EJEOTOR. APPLICATION FILED MAY 27, 1908.

2 SHEETS-SHEET 1,

WITNESSES INVENTOR 21/2 67 WQM/ 615M547 6 B 1% a m 74%;

W. MoCLINTOOK. I

SEWAGE EJEG'IOR.

Patented Feb. 2, 1909. I 2 sums-$111121 2.

J llVI/ENTOH 74 wam Zl/wi i e y APPLICATION FILED MAY 27, 1908.

WILLIAM. MQCLINTOCK, or NEW roan, N. Y.

SEWAGE-EJEGTOB;

Specification of Letters Patent.

Patented Feb. 2, 1909.

Application filed. May 2'7, 1908. Serial No. 486,350.

To all whom it may concern: 1

Be it known that 1, WILLIAM MCCLIN- TOOK, a citizen of the United States, residing at New York city,in the county and State of New York, have invented certain new and useful Improvements in Sewage- Ejectors, of which the following, in connection with the accompanying drawings and the reference characters marked thereon, is a full, clear, and exact specification, sufficient to enable others to make and use my improvements and practice my invention.

This invention has relation to that class-of devices which are employed for elevating or ejecting sewage and such like matter from levels below the ordinary sewage discharge level, and principally employed .in buildings or in floating vessels, but which may be employed in any situation and for accomplishing a similar purpose in connection with any material which it may be desired to elevate by fluid pressure'thereon.

The principal object of this invention is to provide or produce a sewage ejector of few and simple parts,-easy and certain of operation, not liable to become disairanged or get outof order and which will be reliable and efficient as. well as automatic in action, the automatic operation depending upon the height to which the material may collect in the receiver or tank or the distance'to which it may descend, provision being made for starting the automatic operation at an desired height of the material in the tan r, whether at the highest or the lowest point.

A. further object of this invention is to make the device comparatively small and compact, with the parts so constructed and arranged that access may be easily had to either the interior or'the valve-casing or to the interior of the tank, one without disturbing the other. 1

A still further object is to provide a simple and efficient means of ventilating and relieving the tank after the material has been ejected therefrom. 1

To accomplish all of the foregoing objects and to secure other and further advantages in the matters ot'construction, operation, adaptation and use, my improvements involve certain new and useful relative arran ements or combinations or parts, peculiari ies of construction and principles of operation, as'will be "first fully described and then pointed out in the claims.

F In the accompanying drawings which form part of this specification, Figure 1 is a vertical view, partly in section and partly in elevation, showing my improved apparatus with inlet and outlet for the. material and with the valve operating appliance in place upon the top of the tank. Fig. 2 is a top or plan View corresponding withFig. 1. Fig. 3 is a sectional elevation showing the valve for controlling the ejecting fluid and for ventilating the tank, the same being in place in its casing, mounted upon the standards and being represented in open position, all on a scale larger than in Fig. 1, the view being taken on aplane through line 3-3 of Fig. 2 and looking in the direction of the contiguous arrow. Fig. 4: is a sectional elevation on a plane throughline 4-4 of Fig. 2 and looking in the direction of the contiguous arrow, rep resenting the weighted lever and its connec- 'tions or adjuncts for automatically shifting the valve to either the open or closed position. Fig. 5 represents, in face view, the contacting parts of the collar, the weighted lever and the sleeve connected with the rocking arm. Fig. 6 is a sectional elevation showing the operating rod with its yoke and the rocking arm, the View being taken on a plane through line 6-6 of F ig. 2 and looking in the direction of'the contiguous arrow. l In these several figures like reference characters, wherever they occur, are employed to indicate like parts. 1

1 represents the tank or receiver, of suitable size and shape, and this is usually mounted upon a. base, as 2, or otherwise secured in place as may be desired. An inlet for sewage material is represented at 3 and an outlet as at 4,- the latter being preferably at the lower portion of the tank, although it might be otherwise placed. The outlet and the inlet are each provided with check valves represented respectively at 5 and 6, the latter opening inwardly. and the former opcn-.

mg outwardly to permit the outflow and inflow of the material, to check the back flow through the outlet and to check the outflow of the pressure fluid when the latter is applied to effect the discharge from the tank. The branch 7 which is connected with the plumbing system and on the closing side of the check valve6 is inclined at an angle of about 4.5 degrees, as indicated While air pressure is preferably employed to efiect the ejection steam or other fluid may be employed, as is well understood.

The valve for automatically admitting the pressure fluid to the tank when the latter has received its proper charge and for shutting off the inflow of the pressure fluid when the contents of the tank have been discharged is best represented in Fig. 3 and is operated by means of a float 8 and cooperating rod, as 9, the latter passing up through the top of the tank and being suitably packed against leakage, as at 10. On the rod 9 is a stop or button, as 11, fixed at the proper point so that when the float, 8, rises sufficiently to bear against it, the buoyant effort of the float will force the rod 9 upwardly and thus open the valve, as will be hereafter explained, An-

other stop or button, as 12, is located on the rod 9 below the float and at the proper point so that whenthe float descends with the material being discharged, the weight of the float and its contents will carry the rod 9 down and thus shut off the incoming fluid pressure. The float 8 moves up and down upon rod 9 between the two stopsll and 12 which are properly spaced according to the I circumstances of the case. The float is weighted to the proper degree by water and then closed, as by a plug 13, so as to prevent entrance to the float of material from the tank. This prevents clogging of the float and variations in its weight and thus obviates the necessity of frequent opening of the tank, as would be otherwise required. The tank is provided with a suitable hand-hole cover, as 1 1, which may be removed if necesslty requires to gain access to the interior of the tank. The rod 9 being movable up and down is guided at the top by the packing 10 and at the bottom by a suitable arm, as 15. The top plate of the tank and the hand-hole cover are of course to be secured in place by some suitable and secure means.

The valve for governing the pressure fluid and the means for operating the valve which are directly connected therewith are mounted upon a suitable frame comprising a base piece, 16, and uprights 17, 17 and this base is fixed on the top of the tank, or elsewhere if preferred. The arrangement enables the frame to belocated at any desired point and on any size or shape of tank, being separately constructed, and it affords bearings for the shaft through means of which the valve is thrown and for the valve casing,

' absorbing or sustaining the shocks due to the movements of the weighted lever.

18 is the valve cas1ng,.the same being sus' tained upon standards 17 and being provided with an inlet, as at 19, with which the pi Je conveying the fluid under pressure is to be connected and with a ventilating orifice, 20, which is to beconnected with the plumbing system to afford ventilation for the pressure fluid which may be left in the tank after the material has been ejected therefrom. The valve casing also accommodates a dog, as 21,

spindle. 'these two parts might be otherwise made if by which the valve is to be thrown in one direction or the other.

22 is a hollow spindle having a disk valve, 23, at one part, the same bein arranged to close against a seat, as 24, and at the other end a piston valve, represented at 25, adapted to close or open theorifice 20. When the valve 23 is seated, the orifice 20 is open, and when the valve 23 is open the orifice is closed. Fluid under pressure enters at 19, passes the valve 23 when the latter is open and flows to the interior of the tank past the valve spindle guides, 26, through a suitable tube, as 27, connected with the open end, 28, of the valve casing. This pressure fluid forces the material out of the tank as is well understood, finding no egress until the work of -,ejection is accomplished. As soon as the tank is emptied to the predetermined point, the float 8 moves the rod 9 down, and this effects the closing of the valve 23 and the immediate opening of the relief port 20 through the operation of a weighted lever, 29.

A shaft, 30, is journaled at one end on one of the standards 17, as at 31, and at the other end in a closed portion of the valve casing, as at 32; and this shaft carries the dog 21 which is properly secured thereon and arranged to en 'age the valve spindle 22, as in a recess 33, formed in a projection on said Of course this connection between desired, but the recess is simple and it enables the valve spindle to turn in its bearings and yet remain always in operating position.

On the shaft 30 is keyed a collar, 34, preferably by a removable pin, as or this collar is otherwise secured in place so as to remain fixed with reference to the shaft 30. The face of this collar is recessed, as at 36, to accommodate the throw of a projection, 37, formed on or connected with the hub of the weighted lever 29. The shaft 30 passes through the hub of the lever 29, the latter being movable on the shaft to the extent required. On that side of the hub of the lever 29 opposite the projection 37, the hub is recessed as at 38 to accommodate the throw of a projection, 39, which enters said recess and which is formed on or with a collar, 40, mounted upon shaft 30 and turning thereon to an extent permitted by the adjacent parts.

The collar 40 carries a projecting arm, l1, which passes through an elongated eye or opening in the top. piece or yoke, 42, fixed upon the upper end of the rod 9.

Any suitable weight or weights, as 43, are mounted upon the arm 29 and preferably made adjustable thereon by set screws as, 44, 44, or by other suitable means. \Vhen the rod 9 is forced upwardly, the yoke 42 strikes the rod 41 and carries its free end upward, thus turning the collar 40 upon shaft 30 until the projection 39 strikes the wall of the recess 38 when it causes the weighted arm 29 to move in a corresponding When the valve is opened" to admit presof recess 36,'thus carrying the shaft 30 and .den and not gradual, as where springs are p The ejecting fluid then enters the tank, drives direction. As soon as the weighted arm. 29 passes the vertical line through its center of gravity, it will fall by reason of its weight and the projection 37 will strike one-wall dog 21 to a position to slide the valve spindle so asto open the valve. This action is sudused. Thus, as will be apparent, the valve is forced open, and this to its extreme limit of travel. while the relief port 20 is closed.

the material therefrom until the float 8 strikes the button 12, thus carrying the rod 9 in the opposite direction. As the. rod 9; descends the yoke 42strikes the top of the rod 41, thus swinging the .free end of the latter down, and this causes the weighted lever 29 to swing in the opposite direction. As the lever 29 passes the vertical line through its center of gravity it again falls by reason of its weight and through the means already described forces the valve spindle in the opposite direction, thus closing the valve 23 and opening the port 20. This shuts off the inflow of pressure fluid to the tank and permits relief or ventilation of the tank, the air or fluid therein then passing back through the hollow spindle 22 and out at the port 20 to the plumbing system or other point of exhaust. A

The piston valve, represented at 45, is con. sidcrably elongated so as to Work easily and smoothly and yet prevent escape of air or steam around it. The recesses around this valve may receive packing rings if desired though this will not ordinarily be necessary. A removable plu 46 is employed to close the end of the va ve casing next the piston valve. v

The two valves, 45 and 23 a e very nearly balanced. When valve 23 is en the pres sure fluid acts against its bearing face and its opposite side and against the front and back of the piston valve, the exposed areas of the two valves being then about equal; but when valve 23 is closed andport 20 opened, the pressure fluid acts against the rear of valve 23 and the inner end of valve 45, the former being in area slightly greater than the latter. In co.nsequence ,of this inequality in area, the valve 23, when closed, is constantly pressed to its seat and is in no danger of being accidentally opened. The accidental or unnecessary opening of the valve which governs admission of pressure fluid in this class of devices not only causes a waste of pressure fluid but a constantly flowin back ventilation from the tank which is objectionable and often dangerous. The two valves cannot become clogged or stick, and when one is o ened the other is suddenly and securely c osed, and this inobvious.

The apparatus'constructed and arranged dependently of the rate of flow to the tank.

sure fluid to the tank, it becomes a balanced valve, and when closed it becomes a differential valve, the advantages of the transfer from one kind to the other at the times and in the manner explained being sufiiciently substantially in accordance 'with the foregoing explanationswill be found to be accurately and efliciently operative, easy to keep in order and to answer all the purposes or objects of the invention herein alluded to.

Having-now fully described my invention, what I claim as new herein and desire to secure by Letters Patent, is: 4

1. Ina sewage ejector, a tank, fluid-supply and exhaust passagesand their ports, and a valve for governing the admission of fluid pressure to and from the tank, said valve consisting of a piston and a disk, and a hol low spindle common to the piston and disk and connecting the same, the piston governing the exhaust port and the disk governing the supply port.

2. In a sewage e ector, a tank, fluid-supply and exhaust passages and their ports, and a valve for governing the admission of fluid pressure to and from the tank, said valve consisting of a piston and disk, and a hollow spindle common to the piston and disk and port and the disk governing the supply port.

' 3. In a sewage ejector, a tank, fluid-supply connecting the same, said hollow spindle and exhaust passages and their ports, anda valve for governing the admission of fluid pressure to and from the tank, said valve consisting of a piston and a disk, a "hollow spindle common to the piston and disk, connecting the same and serving as a passage for the exhaust from the tank, the piston end of the valve governing a port for the discharge of the exhaust pressure fluid, and the disk end governing the fluid sup ly port.

4. In a sewage ejector, a tank, fluid-supply and exhaust passages and their ports, and a valve for governing the admission of fluid pressure to and from the tank, said valve consisting of a piston and a disk, a hollow spindle common to the piston and disk, connecting the same and serving as a passage for the exhaust from the tank, the piston end of the valve governing a port for the discharge of the exhaust pressure fluid, the disk end of the valve being slightly greater in diameter'than the piston end, the fluid pressure acting on the inside faces of the disk and iston ends only when the valve is closed and 'the excess on the disk end acting to hold the disk tightly closed against its :eat, the valvethus being difl'erential when closed.

5. In a sewage ejector, a tank, fluid-supply and exhaust passages and their ports, and a valve for governing the admission of fluid pressure to and from the tank, said valve consisting of a piston and a disk, a hollow spindle common to the piston and disk, con-- necting the same and serving as a passage for the exhaust from the tank, the piston end of the valve governing a port for the discharge of exhaust pressure fluid, the disk end of the valve being slightly greater in diameter than the piston end, the fluid pressure acting on all four faces of the valve when it is open, the pressure fluid passing through said hollow spindle and actin against the outside face of the piston en the valve thus being balanced when open.

6. In asewage ejector, a tank, fluid-supply and exhaust passages and their ports, and a valve for governing the admission of fluid pressure to and from the tank, said valve consisting of'a piston and a disk, a hollow spindle connecting the piston and. disk and arranged to move them both simultaneously in,either direction, the hollow spindle being provided with two fixed collars on its exterior, and a dog for engaging said collars, the PlStOll end of the valve governing the port for the discharge of the exhaust pressure fluid and the disk end of the valve governing the port for admission of the pressure fluid.

7. In a sewage ejector, the combination with the tank, of a valve for governing the fluid under pressure, a shaft carrying a dog for moving said valve, a collar secured upon said shaftand recessed as explained, a weighted lever carrying a projection on one side movable in said recess and on the other side being itself recessed, a sleeve mounted on the shaft and having a projection movable in the recess on the Weighted arm, a projecting arm connected with said sleeve, a movable rod having a yoke for engagement with said projecting arm, and a float located within the tank to cause the rod to move up and down, substantially as and for the purposes set forth.

8. In a sewage ejector, the combination with the tank, of a valve for governing the fluid under pressure, said valve comprising a piston and a disk, a hollow spindle connecting the two parts of the valve and provided with collars, a shaft carrying a do for engaging the spindle, a collar secure upon said shaft and recessed. as explained, a weighted lever carrying a projection on one side movable in said recess and on the other side being itself recessed, a sleeve mounted on the shaft and having a projection movable in the recess on the weighted arm, a projecting arm connected with said sleeve, a movable rod having a yoke for engagement with said projecting arm, and a float located Within the tank, substantially as and for the purposes set forth.

WILLIAM ll ICCLINTO CK.

Witnesses: WORTH Oscooo,

L. H. Osooon. 

